> For the complete documentation index, see [llms.txt](https://docs.ledge.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ledge.co/api-reference.md).

# API Reference

- [Getting Started](https://docs.ledge.co/api-reference/getting-started.md)
- [Fundamentals](https://docs.ledge.co/api-reference/fundamentals.md)
- [Authentication](https://docs.ledge.co/api-reference/fundamentals/authentication.md)
- [Fine-Grained Permissions](https://docs.ledge.co/api-reference/fundamentals/fine-grained-permissions.md)
- [Pagination](https://docs.ledge.co/api-reference/fundamentals/pagination.md)
- [Status Codes](https://docs.ledge.co/api-reference/fundamentals/status-codes.md)
- [Error Handling](https://docs.ledge.co/api-reference/fundamentals/error-handling.md)
- [Sources](https://docs.ledge.co/api-reference/sources.md)
- [Transactions](https://docs.ledge.co/api-reference/transactions.md)
- [Querying](https://docs.ledge.co/api-reference/transactions/querying.md)